| Thornton to Oberkirch | 562.28 mi (904.91 km) |
| Thornton to Obernburg am Main | 542.20 mi (872.59 km) |
| Thornton to Obernkirchen | 467.26 mi (751.98 km) |
| Thornton to Oberschleissheim | 695.81 mi (1,119.80 km) |
| Thornton to Oberstdorf | 689.26 mi (1,109.25 km) |
| Thornton to Obertraubling | 688.62 mi (1,108.23 km) |
| Thornton to Obertshausen | 522.08 mi (840.21 km) |
| Thornton to Oberursel | 507.41 mi (816.59 km) |
| Thornton to Ochsenfurt | 583.76 mi (939.47 km) |
| Thornton to Ochsenhausen | 646.73 mi (1,040.81 km) |
| Thornton to Ochtrup | 391.24 mi (629.65 km) |
| Thornton to Odenthal | 422.79 mi (680.42 km) |
| Thornton to Oelde | 438.54 mi (705.75 km) |
| Thornton to Oelsnitz | 637.57 mi (1,026.07 km) |
| Thornton to Oer-Erkenschwick | 408.44 mi (657.32 km) |
